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annotate src/server/session_iface.py @ 1022:6dc90f109e57

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pages (common/blog/atom.xml): use cache
author Goffi <goffi@goffi.org>
date Sun, 21 Jan 2018 13:17:49 +0100
parents f88325b56a6a
children f2170536ba23
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a SAT frontend
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5 # Copyright (C) 2009-2017 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 from zope.interface import Interface, Attribute, implements
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20 from sat.tools.common import data_objects
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21 from libervia.server.constants import Const as C
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22 import os.path
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23 import shortuuid
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24
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25 FLAGS_KEY = '_flags'
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26
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27 class ISATSession(Interface):
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28 profile = Attribute("Sat profile")
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29 jid = Attribute("JID associated with the profile")
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30 uuid = Attribute("uuid associated with the profile session")
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31 identities = Attribute("Identities of XMPP entities")
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32
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33
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34 class SATSession(object):
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35 implements(ISATSession)
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36
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37 def __init__(self, session):
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38 self.profile = None
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39 self.jid = None
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40 self.uuid = unicode(shortuuid.uuid())
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41 self.identities = data_objects.Identities()
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42 self.csrf_token = unicode(shortuuid.uuid())
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43 self.pages_data = {} # used to keep data accross reloads (key is page instance)
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44
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45 @property
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46 def cache_dir(self):
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47 return os.path.join(u'/', C.CACHE_DIR, self.uuid) + u'/'
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48
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49 def getPageData(self, page, key):
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50 """get session data for a page
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51
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52 @param page(LiberviaPage): instance of the page
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53 @param key(object): data key
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54 return (None, object): value of the key
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55 None if not found or page_data doesn't exist
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56 """
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57 return self.pages_data.get(page, {}).get(key)
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58
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59 def popPageData(self, page, key, default=None):
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60 """like getPageData, but remove key once value is gotten
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61
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62 @param page(LiberviaPage): instance of the page
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63 @param key(object): data key
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64 @param default(object): value to return if key is not found
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65 @return (object): found value or default
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66 """
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67 page_data = self.pages_data.get(page)
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68 if page_data is None:
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69 return default
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70 value = page_data.pop(key, default)
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71 if not page_data:
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72 # no need to keep unused page_data
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73 del self.pages_data[page]
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74 return value
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75
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76 def setPageData(self, page, key, value):
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77 """set data to persist on reload
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78
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79 @param page(LiberviaPage): instance of the page
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80 @param key(object): data key
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81 @param value(object): value to set
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82 @return (object): set value
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83 """
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84 page_data = self.pages_data.setdefault(page, {})
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85 page_data[key] = value
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86 return value
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87
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88 def setPageFlag(self, page, flag):
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89 """set a flag for this page
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90
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91 @param page(LiberviaPage): instance of the page
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92 @param flag(unicode): flag to set
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93 """
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94 flags = self.getPageData(page, FLAGS_KEY)
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95 if flags is None:
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96 flags = self.setPageData(page, FLAGS_KEY, set())
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97 flags.add(flag)
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98
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99 def popPageFlag(self, page, flag):
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100 """return True if flag is set
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101
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102 flag is removed if it was set
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103 @param page(LiberviaPage): instance of the page
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104 @param flag(unicode): flag to set
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105 @return (bool): True if flaag was set
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106 """
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107 page_data = self.pages_data.get(page, {})
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108 flags = page_data.get(FLAGS_KEY)
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109 if flags is None:
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110 return False
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111 if flag in flags:
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112 flags.remove(flag)
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113 # we remove data if they are not used anymore
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114 if not flags:
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115 del page_data[FLAGS_KEY]
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116 if not page_data:
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117 del self.pages_data[page]
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118 return True
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119 else:
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120 return False
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123 class ISATGuestSession(Interface):
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124 id = Attribute("UUID of the guest")
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125 data = Attribute("data associated with the guest")
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126
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127
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128 class SATGuestSession(object):
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129 implements(ISATGuestSession)
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130
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131 def __init__(self, session):
7b267496da1d server: moved session interfaces to session_iface module + added SATGuestSession
Goffi <goffi@goffi.org>
parents:
diff changeset
132 self.id = None
7b267496da1d server: moved session interfaces to session_iface module + added SATGuestSession
Goffi <goffi@goffi.org>
parents:
diff changeset
133 self.data = None